1911 Encyclopædia Britannica/Thera
THERA, the southernmost island of the Sporades, now called Santorin (q.v.). It was known as Thera until after the Fourth Crusade, when it became part of the duchy of the Archipelago.
See also Santorini on Wikipedia; and our 1911 Encyclopædia Britannica disclaimer.
THERA, the southernmost island of the Sporades, now called Santorin (q.v.). It was known as Thera until after the Fourth Crusade, when it became part of the duchy of the Archipelago.